In all the aforementioned studies, a dust temperature had to be assumed to extrapolate the single-band ALMA measurement to a total IR luminosity, and most studies assumed temperatures around 40 K, similar to local and intermediate-redshift star-forming galaxies. [1]} argued that local analogues to high-redshift LBGs have higher dust temperatures (\(T_\mathrm {dust} \sim 60-90\,\mathrm {K}\) ), and that adopting such temperatures would bring the ALMA detections (and upper limits) more in agreement with Milky-Way dust in the IRX-\(\beta \)  relation. Theoretical work also seems to support hotter dust at high redshifts (e.g., [2]}, [3]}, [4]}, [5]}, [6]}, [7]}).
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